que es flúor 10
Fluoride is the chemical element of Atomic 9 number located in the Group of halogens ( 41 17 group; the periodic table of the elements. Its symbol is F.Es a gas temperature ambient, pale yellow, made up of diatomic F2 molecules. It is the most electronegative and reactive of all elements. In pure form it is highly dangerous, causing severe chemical burns upon contact with skin.